18613760

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{661}}^1$

素因数の和:695

約数の個数: 80

約数和(自身を含む): 48760272

約数和(自身を除く): 30146512

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 661, 704, 880, 1280, 1322, 1408, 1760, 2560, 2644, 2816, 3305, 3520, 5288, 5632, 6610, 7040, 7271, 10576, 13220, 14080, 14542, 21152, 26440, 28160, 29084, 36355, 42304, 52880, 58168, 72710, 84608, 105760, 116336, 145420, 169216, 211520, 232672, 290840, 338432, 423040, 465344, 581680, 846080, 930688, 1163360, 1692160, 1861376, 2326720, 3722752, 4653440, 9306880, 18613760]

約数ペア:

[(1, 18613760), (2, 9306880), (4, 4653440), (5, 3722752), (8, 2326720), (10, 1861376), (11, 1692160), (16, 1163360), (20, 930688), (22, 846080), (32, 581680), (40, 465344), (44, 423040), (55, 338432), (64, 290840), (80, 232672), (88, 211520), (110, 169216), (128, 145420), (160, 116336), (176, 105760), (220, 84608), (256, 72710), (320, 58168), (352, 52880), (440, 42304), (512, 36355), (640, 29084), (661, 28160), (704, 26440), (880, 21152), (1280, 14542), (1322, 14080), (1408, 13220), (1760, 10576), (2560, 7271), (2644, 7040), (2816, 6610), (3305, 5632), (3520, 5288)]